Singer Amy Winehouse pleaded guilty to an assault charge on Wednesday relating to a December incident where she assaulted a theater manager during a Christmas show in Buckinghamshire, England.

Winehouse, 26, lashed out at Richard Pound during a performance of "Cinderella," pulling the theater manager’s hair when he suggested she have a glass of water rather than an alcoholic beverage. The court was told that Winehouse had consumed five vodka and Cokes prior to the incident.

According to BBC News Judge Peter Crabtree told the troubled singer that "Mr. Pound is a person whose job involves interaction with the public ... (who) deserves the court's protection."

"It was a reaction, an over-reaction. Clearly there was no injury," he said.

Addressing Winehouse directly, the judge referred to her medical report, saying: "You clearly have taken effort from this report to address your alcohol problems and any other problems you may have, so you get credit for that."

Winehouse, who was charged under her married name, Amy Civil, was given a two-year conditional discharge, ordered to pay court costs and compensate Pound $300. The judge warned that she will be “hit hard” if she commits any further offenses during her probation period.

I used to really like Amy Winehouse's music. Now her attitude overshadows her music and makes me not like her. There's no reason to be a drunken mess for no reason. Seriously, you're grown. Act like it.